science festival discovery day. more than 150 labs and businesses set up exhibits and demonstrations. organizers hope today's event will want to learn more about science engineering and technolo technology. >> the future of science, of clinical care depends on the best kids caring about the subjects and thinking they are fun and exciting and interesting. this festival is all about that. >> this was the second year this event was held. about 25,000 people showed up. 25,000. i said that. that's 4,000 more than last year. organizers say the great weather had a lot to do with the great turn out. right now we'll check in with the great weather. we're going to have more of that weather and then change again. >> things will feel like the end of summer as we wrap up the weekend. right now it's a little cool outside.